baber/WOPTO huggingface dataset:
Patent CA-2021540-C (CA)
Inventor: COOKE WILLIAM M
IPC: B32B5/18
Filed: 1990-07-19
Granted: 1994-10-25
Abstract: A fire-resistant fabric suitable for use as a flame barrier comprising a flame durable textile fabric substrate formed of corespun yarns, the yarns comprising a core of flame resistant fiber and a sheath of modacrylic intumescent staple fibers.  In normal use, the fabric is flexible and conformable and has good air porosity.  When exposed to high temperature or a flame, however, the modacrylic intumescent sheath fiber reacts and swells to form a char which closes the pores or interstices of the fabric to thus prevent flame or hot gases from penetrating therethrough.
Patent CA-2023218-C (CA)
Title: Process for the preparation of copolymers of conjugated dienes and vinyl aromatic compounds
Inventor: VAN BALLEGOOIJEN HENDRIK
IPC: C08F4/48
Filed: 1990-08-14
Granted: 2001-02-20
Abstract: A process for the preparation of random copolymers or block copolymers of at least one conjugated diene and at least one vinyl aromatic compound comprising reacting the monomers with the aid of an initiator based on lithium in the presence of an essentially inert solvent wherein said solvent consists for at least 60 per cent by weight of cyclopentane and the heat of reaction is withdrawn by means of reflux cooling.
Patent CA-2025523-C (CA)
Title: Air-moisture generation system
Inventor: KALISHMAN CALVIN
IPC: A61M16/16
Filed: 1990-09-17
Granted: 2000-12-19
Abstract: A simple air-moisture generation system is provided which employs a tank holding liquid to a level which leaves an air space, above the liquid. An air compressor is provided for furnishing a source of compressed air to an inlet to the tank, and a metering valve is located in the outlet from said air compressor to control the volume and pressure of the air emanating from the compressor and inputted to the tank. An outlet passage from the tank provides the air-moisture flow, and the system preferably is provided with a switch to disable the air compressor when the liquid drops to a designated level in the tank.
Patent CA-2026530-C (CA)
Title: Graphic architectural glass
Inventor: CESAR CLAUDIO
IPC: C03C27/04
Filed: 1990-09-28
Granted: 2003-05-27
Abstract: A graphic glass laminate is created by heat-laminating a printed sheet of extruded polyurethane between two plates of glass, using normal autoclave process. The polyurethane interlayer bonds directly to the glass with very little distortion to the color or registration of the printed ink.      The resulting composite is extremely strong and safe, having better structural and superior heat-resistant characteristics compared to regular safety glass and may contain an extremely artistic and decorative look. The interlayer graphics can be made "light-fast" when proper inks are used. Transparent and translucent inks may be employed and the glass may be used with different lighting techniques, such as edge-lighting.
Patent CA-2029469-C (CA)
Title: Electrode endotracheal tube
Inventor: GOLDSTONE ANDREW C
IPC: A61B5/296
Filed: 1990-11-07
Granted: 1995-04-18
Abstract: An   electrode  endotracheal   tube  for   detecting electromyographic  signals  in  the  laryngeal  muscles  and comprising electrode wires running in a direction parallel to the central axis of the endotracheal tube.   Each wire is insulated from electrical contact along a first portion of its  length  and  is  exposed along  a  second portion.   The exposed portion is at a location on the tube which permits the exposed portion to contact the adjacent laryngeal muscles when the endotracheal tube is inserted into the trachea.
Patent CA-2035298-C (CA)
Title: Plasticized hydrogenated nitrile rubber
Inventor: WISEMAN WILLIAM ALBERT
IPC: C08L9/02
Filed: 1991-01-30
Granted: 1999-08-10
Abstract: This invention provides a plasticized hydrogenated nitrile composition. The composition of the present invention must contain a peroxide vulcanization system and a specific type of plasticizer. Vulcanizates according to the invention have superior resistance to hot air ageing in comparison to conventionally plasticized compositions, and most surprisingly, in comparison to non-plasticized compositions. The compositions of the present invention may be used to prepare hoses, seals, gaskets and other rubber goods.
Patent CA-2038181-C (CA)
Title: Stabilization of methacrylic polymers against sterilizing radiation
Inventor: KEATING PAUL JOSEPH
IPC: C08L33/04
Filed: 1991-03-13
Granted: 2002-06-04
Abstract: The present invention is directed to methacrylic polymer compositions which may be used to form plastic products which have increased resistance to sterilizing radiation, such as gamma or electron beam irradiation.
Patent CA-2040101-C (CA)
Inventor: BIERA LEONARD W
IPC: B23B51/10
Filed: 1991-04-09
Granted: 2000-06-20
Abstract: Apparatus for machining a valve seat and valve stem guide all from the valve seat side of a head or block. The valve seat is machined in one pass by a single point cutting tool which is moved on two axes, and the valve guide bore is machined by a reamer. The movements of the single point cutting tool and reamer are numerically controlled.
Patent CA-2040529-C (CA)
Title: Farnesyl-protein transferase assay for identifying compounds that block neoplastic transformation
Inventor: BARBACID MARIANO
IPC: C12Q1/48
Filed: 1991-04-16
Granted: 2007-03-20
Abstract: Assays for farnesyl-protein transferase (FT) which can be used to identify substances that block the farnesylation of ras oncogene products are described.      Because farnesylation is required for ras oncogene activity, inhibitory compounds identified in the assays of the invention can block neoplastic transformation mediated by the ras oncogene. The assays of the invention are targeted for a step subsequent to the synthesis of farnesyl pyrophosphate (FPP), the donor of the farnesyl residue, and an intermediate in cholesterol synthesis and other important cellular pathways. Therefore, compounds which inhibit ras mediated transformation, yet do not cause major disruptions of important cell pathways that require FPP as an intermediate may be identified using the assays of the invention.
Patent CA-2045882-C (CA)
Inventor: BAZET ANDRE
IPC: H03M13/23
Filed: 1991-06-27
Granted: 1994-12-27
Abstract: Ce décodage consiste à explorer en sens inverse une pluralité de chemins d'un treillis représentatif d'un diagramme des transitions possibles résultant d'un codage par un codeur à v bascules, chaque noeud du treillis étant représenté par un mot de N = 2v bits. Le circuit opère de manière à sélectionner, parmi une pluralité de chemins survivants possibles, celui présentant la métrique la plus faible, de manière à reconstituer ainsi le chemin du treillis effectivement décrit lors du codage et retrouver la séquence de bits d'information ayant provoqué le parcours de ce chemin. Selon l'invention, le circuit comprend une mémoire stockant une pluralité des mots de N = 2v bits et, en sortie de cette mémoire, un montage en cascade de v groupes de multiplexeurs 2-en-1, réduisant progressivement les 2v sorties de la mémoire en une sortie unique, une bascule D, étant disposée en sortie de chaque multiplexeur. La dernière bascule, unique, la plus en aval délivre séquentiellement les bits d'information correspondant au chemin recherché, et le signal de sélection de chaque multiplexeur est directement donné par la sortie de cette dernière bascule.
Patent CA-2045938-C (CA)
Inventor: MCINNES PETER R
IPC: A61M25/00
Filed: 1991-06-28
Granted: 1999-08-17
Abstract: A perfusion-type intravascular catheter having an outer sheath disposed about the catheter body with a sealing element on the distal end of the sheath to seal off the distal end thereof at a location distal to perfusion ports provided in the wall of the catheter body proximal to an expandable working member such as an inflatable balloon whereby blood can be directed through the proximal perfusion ports into an inner lumen extending through the working member and out of perfusion ports provided int the walls of the catheter distal to the expandable working member to ensure that ischemic conditions do not occur distal to the catheter when the working member is expanded to perform a vascular procedure therein.
Patent CA-2046321-C (CA)
Inventor: COOPER ANTHONY JAMES
IPC: H04M1/00
Filed: 1990-02-02
Granted: 1996-08-27
Abstract: An optical communications system comprises a transceiver arranged to provide two-way communication over an optical communications channel (3). The transceiver comprises a semiconductor light source (4) and a detector (5). The semicondutor light source (4) provides optical signals for transmission via the optical communications channel (3), and the detector (5) detects optical signals received via the optical communications channel and converts said optical signals into electrical signals. Means (2, 2a, 2b) are provided for modulating the output of the semiconductor light source (4) wiht an RF carrier having a first frequency. Said electrical signals are passed through a filter (8) adapted to filter out signals at said first frequency.
Patent CA-2047241-C (CA)
Title: Automatic picture taking machine
Inventor: WAIN JOHN LAURENCE
IPC: H04N5/765
Filed: 1990-02-27
Granted: 2001-01-09
Abstract: An automatic picture taking system has a housing which may be in the form of a booth. The housing contains a video camera (20) and is arranged to produce a video picture of a subject in a picture taking zone (3). The video picture can be converted to a print e.g. using a digital thermal colour printer (24, 25). The video picture is stored in memory and can be processed to give a desired composition prior to printing.    The picture may consist of the image of the subject which is separated from the background using chroma keying and which is then combined with a selected electronically prestored background or foreground.
Patent CA-2051883-C (CA)
Title: Alkoxybenzotriazole compositions and the use thereof as copper and copper alloy corrosion inhibitors
Inventor: VANDERPOOL DANIEL P
IPC: C23F11/10
Filed: 1991-09-19
Granted: 2001-04-10
Abstract: An alkoxybenzotriazole, in combination with mercaptobenzothiazole, tolyltriazole, benzotriazole, a substituted benzotriazole and/or 1-phenyl-5-mercaptotetrazole, is used to inhibit the corrosion of metallic surfaces, particularly copper surfaces, in contact with an aqueous system. Systems and compositions are also claimed.
Patent CA-2052118-C (CA)
Title: Engine air precleaner
Inventor: SMITH DANIEL R
IPC: F02M35/022
Filed: 1991-09-24
Granted: 1996-11-12
Abstract: An engine air precleaner which is efficient at both low and high engine speeds as described.  The precleaner has two air flow designs incorporated within it:  one for a lower velocity of air flow and one for a high velocity of air flow.  The dual air flow design is accomplished by an outer tubular sleeve member and an inner tubular sleeve member attached to an engine air intake stack.  At low engine speeds, the air flow passes into the precleaner and through the inner tubular sleeve, causing the contaminant removal system to efficiently remove contaminants from the air.  When the engine speed is increased, a valve opens allowing air to flow through tubular sleeve.  Therefore, the  contaminant  removal system will operate substantially the same speed whether the engine is running at a lower or higher throttle.
Patent CA-2060578-C (CA)
Inventor: MARTIN PIERRE ABEL
IPC: B60B5/02
Filed: 1992-02-03
Granted: 1998-06-09
Abstract: -Cycle. -La jante est caractérisée en ce qu'elle comprend au moins deux caissons adjacents (2, 3) possédant une paroi commune (4) et constitués chacun par une âme (5, 7) en un matériau alvéolaire de structure et par une enveloppe (6 ou 8) à caractère rigide, à base de textiles composites de fibres synthétiques imprégnées et polymérisées entourant étroitement l'âme à laquelle elle est liée, l'un des caissons constituant un corps de jante, tandis que l'autre définit un profil de jante périphérique extérieur destiné au montage d'un bandage de roue. -Application aux roues de cycles de compétition.
Patent CA-2062528-C (CA)
Title: Electronic register
Inventor: FUYAMA SEIJI
IPC: G07G1/12
Filed: 1992-03-09
Granted: 1997-11-25
Abstract: Disclosed is an electronic register in which, when a sales item requiring input of its sub-item information is to be registered, the correct sub-item information can be inputted without fail.  The number of the sub-items is in no way limited by the number of keys on the keyboard of the register.  The electronic register comprises a memory storing a PLU file, and information including price look up codes or PLU codes allotted to individual sales items, names of the individual items, unit prices of the individual items, compulsory input status information indicating that a sales item requires input of its sub-item information, sub-item status information indicating that an item represents sub-item information, and class code information for classifying the sub-items according to linkage with the corresponding sales items, are stored respectively in individual storage areas of the PLU file.  At the time of registration of a sales item with an active compulsory input status information, the sub-items having the same class code are displayed together with their display line numbers on a display unit as candidate sub-items for registration.  The sub-item is registered when the corresponding display line number is issued by manipulation of the keys on the keyboard.
Patent CA-2063586-C (CA)
Title: Fan for an electrically operated machine
Inventor: SUOMELA MARTTI
IPC: F04D25/08
Filed: 1990-07-12
Granted: 1999-11-16
Abstract: The invention relates to a fan for an electrically operated machine, comprising a propeller (1) arranged axially about the machine and including a hub (8) and several blades attached to it and projecting substantially radially from it; and a cover (2) surrounding the propeller (1) in the front and on the sites and comprising a suction opening (3) on the suction side of the propeller (1) and an opening (7) on the pressure side for passing ventilation air into the machine parts to be cooled. To achieve a fan of simple construction, good efficiency and low noise level the blades (9) have a radius of curvature (R) and they are attached to the hub (8) at a blade angle (.alpha.) between 25 and 70.degree.; a gap (S) defined between the suction opening (3) or its cylindrical extension (5) and the blades (9) of the propeller (1) in the axial direction is no more than 20 % of the outer diameter of the propeller (1); the inner diameter (D A) of the suction opening (3) before the propeller (1) is 0.8 to 1.6 times the outer diameter (D S) of the propeller; and the inner diameter of the cover (2) is at least 1.2 times the outer diameter (D S) of the propeller or the inner diameter (D A) of the suction opening, depending on which one of them is larger.
Patent CA-2068005-C (CA)
Title: Drilling apparatus
Inventor: AWDUJEWSKI WSEWOLOD SERGEJEWIT
IPC: E21B7/18
Filed: 1992-05-05
Granted: 1998-08-25
Abstract: The drilling apparatus according to the invention contains a body (1) to which rock-destroying organs - rollers (2) are attached. A subassembly for generating hydrodynamic waves is arranged in the body (1). This subassembly is designed in the form of a turbulence chamber (3) with tangentially arranged entry channels (4) and with a conically tapering outlet channel (5) the frontal surface of which is radially rounded off.             See Fig.I
Patent CA-2071862-C (CA)
Title: A turbofan engine fixed plug noise suppressor
Inventor: TORKELSON DELBERT W
IPC: F02K1/44
Filed: 1990-11-06
Granted: 1995-08-08
Abstract: A noise suppressor for use with a turbofan engine, the suppressor being formed of a tubular exhaust shroud (12) affixed to the engine exhaust end (10), the shroud providing an internal circumferential surface (18), a flow mixer (20) affixed to the engine exhaust end, an elongated centerbody (22) supported within the exhaust shroud and having an external cross-sectional area less than the internal cross-sectional area of the shroud providing an annular area (40) through which thrust producing exhaust gases of the engine pass, acoustic lining (36) affixed to a substantial portion of the internal circumferential area of the exhaust shroud in the portion thereof receiving the centerbody, and acoustical lining (38) affixed to a substantial portion of the exterior area of the centerbody in the area thereof received within the exhaust shroud so that thereby the thrust producing gases pass through an area of reduced channel height. A substantial portion of the annular area through which the gases pass is encompassed by acous-tical lining.
Patent CA-2076577-C (CA)
Title: Continuous polyester filaments available for composing carpets
Inventor: KAWAUCHI MITSURU
IPC: D01F6/62
Filed: 1992-08-21
Granted: 2000-05-02
Abstract: ABSTRACT     The   invention   provides continuous   polyester filaments of polyester resin, primarily for carpets.   The filaments mainly comprise polyethylene terephthalate resin and have been curled in a stuffing box.  The density of each curl ranges from 3 to 5 pieces per 25 mm with each filament being sufficiently bulky for its intended purpose.     sd/ .
Patent CA-2081864-C (CA)
Title: External magnetic field generation apparatus
Inventor: ISHII MITSUO
IPC: G11B5/02
Filed: 1992-10-30
Granted: 1996-11-12
Abstract: An external magnetic field generation apparatus is used for a recording and reproduction apparatus which records information on a magneto-optical recording medium based on a magnetic field modulation system and a light modulation system; it applies a magnetic field to the portion of the magneto-optical recording medium where a light beam is projected. The apparatus has a first electro-magnet, used for the magnetic field modulation system, for generating ana.c. magnetic field which is reversed at a high speed. The apparatus has a second electro-magnet, used for the light modulation system, for generating a strong d.c. magnetic field, and in which power consumption coincides with that of the first electro-magnet. The second electro-magnet is integral with the first electro-magnet. The apparatus has a driver for selecting one of the electro-magnets in response to a switching signal, the driver supplying power to the selected electro-magnet.
Patent CA-2082545-C (CA)
Title: Liquid container, recording head using same and recording apparatus using same
Inventor: NAKAJIMA KAZUHIRO
IPC: B41J2/175
Filed: 1992-11-10
Granted: 1998-09-15
Abstract: A liquid container for containing liquid includes a plurality of defined chambers; a liquid supply port for supplying the liquid out of the container, the supply port is formed in one of the chambers; an air vent formed in the one of the chambers; and liquid supply material only through which the chambers communicate.
Patent CA-2094600-C (CA)
Inventor: BEUVERY EDUARD C
IPC: C07K14/12
Filed: 1991-10-23
Granted: 1998-12-08
Abstract: L'invention concerne des complexes immunogènes comme des lamelles bidimensionnelles ayant une structure en forme de nid d'abeille et, en particulier, des iscoms tridimensionnels. Ces complexes sont composés d'au moins un stérol, d'une saponine et en plus, dans le cas des iscoms, d'un phospholipide et aussi, facultativement, d'au moins un antigène donnant lieu à une réaction immunitaire. La saponine utilisée est au moins une des fractions de Quil A obtenues à l'aide de la chromatographie hydrophobe et qui portent les désignations QA 1 à QA 23, tel qu'indiqué par les chiffres 1 à 23 dans la figure. De préférence, la saponine utilisée correspond à l'une ou à plusieurs des fractions de Quil A ayant les désignations QA 3, QA 17 et QA 23. En plus de concerner le complexe immunogène, l'invention a aussi trait à la méthode spécifique de préparation des fractions de Quil A pertinentes, aux vaccins qui comprennent de tels complexes immunogéniques et aux trousses qui contiennent, d'une part, un complexe immunogène (vide) et, d'autre part, un ou plusieurs peptides ou protéines antigéniques ayant un fragment hydrophobe qui peut ou non avoir été synthétiquement introduit.
Patent CA-2095473-C (CA)
Title: Rotary drive assemblies
Inventor: GRENKE EDWARD
IPC: E21B43/12
Filed: 1993-05-04
Granted: 1996-09-17
Abstract: A well assembly including a drive string, a frame, a spindle mounted on the frame and means for rotating the spindle, is constructed to allow the upper end of the string to pass through the spindle. A nut with a non-circular downward protuberance is tightly, threadably engaged with the upper end of the drive string. The spindle has a non-circular upward protuberance, and a tail bar snugly receives both protuberances.  The tail bar supports the weight of the string and transmits rotary torque from the spindle to the string.
Patent CA-2097632-C (CA)
Inventor: CHEN TAN-JEN
IPC: B01D63/00
Filed: 1993-06-03
Granted: 1999-01-12
Abstract: An improved  spiral wound  element for  separations is disclosed wherein the improvement  comprises using as the  feed/retentate space one or more layers of a material having an open  cross-sectional area in the range  30 to 70%  and as the  permeate spacer material  at least three layers of material two of which are fine and have an  open cross-sectional area of  about 10  to 50% surrounding  a coarse  layer having an open cross-sectional area of about 50 to 90%.           Elements of  this configuration  exhibit element  separation performance nearly equivalent  to that  obtained using  only the membrane.   Such elements are  useful in  reverse osmosis,  ultrafiltration, pervaporation and other separation processes in which a pressure gradient is maintained across the membrane into a permeate zone.
Patent CA-2101815-C (CA)
Inventor: DA SILVA JOSE EDUARDO MENDONCA
IPC: F16L55/38
Filed: 1993-08-03
Granted: 1997-02-25
Abstract: The present invention relates to equipment for the interconnection of two lines to allow running of pigs. Particularly, it is applied to subsea pipelines.  This device allows the pigging installations with restraint accessibility. This equipment allows that pigs launched from the first site into the first line, return via the second line back to the first site.  It is of a modular conception, and can be installed at any equipment located at the interconnection point of the two lines, even for existent facilities.
Patent CA-2107522-C (CA)
Inventor: BELL JAMES M
IPC: F16K31/70
Filed: 1993-10-01
Granted: 1997-12-30
Abstract: The invention provides a self-contained automatic temperature-responsive three way line valve. A tubular valve member is axially slidable between first and second limit positions for selectively directing fluid from an inlet port to a first outlet port or a second outlet port.  The valve member is disposed between a pair of opposed compression springs, one being a conventional spring biasing the valve member to the first limit position and the other being an SME spring which overcomes the bias of the first-mentioned spring when the fluid exceeds a given temperature.